//
//  Math.h
//  土巴兔
//
//  Created by 千锋 on 16/1/17.
//  Copyright (c) 2016年 IOS1503薛凯. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface Math : NSObject
+(NSString*)Base64ToString:(NSString*)string;
+ (NSString *)convertDataToHexStr:(NSData *)data;
+ (NSData *)convertHexStrToData:(NSString *)str;
@end
